22206434 has 4 divisors (see below), whose sum is σ = 33309654. Its totient is φ = 11103216.

The previous prime is 22206433. The next prime is 22206449. The reversal of 22206434 is 43460222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 21298225 + 908209 = 4615^2 + 953^2 .

It is not an unprimeable number, because it can be changed into a prime (22206433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5551607 + ... + 5551610.

Almost surely, 2^22206434 is an apocalyptic number.

22206434 is a deficient number, since it is larger than the sum of its proper divisors (11103220).

22206434 is a wasteful number, since it uses less digits than its factorization.

22206434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11103219.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 22206434 is about 4712.3703165180. The cubic root of 22206434 is about 281.0776244812.

Adding to 22206434 its reverse (43460222), we get a palindrome (65666656).

The spelling of 22206434 in words is "twenty-two million, two hundred six thousand, four hundred thirty-four".